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I am a Senior Full Stack Developer with 8 years of experience designing and delivering software solutions across healthcare and fintech. I thrive on turning complex requirements into scalable, maintainable systems and enjoy collaborating with remote teams and clients to align technology with business goals. My expertise spans modern front-end frameworks, RESTful APIs, cloud platforms, and industry-standard tools like Jira and Git. I’m reliable, team-oriented, and comfortable working on long-term projects with diverse teams to drive continuous improvement.…I am a Senior Full Stack Developer with 8 years of experience designing and delivering software solutions across healthcare and fintech. I thrive on turning complex requirements into scalable, maintainable systems and enjoy collaborating with remote teams and clients to align technology with business goals. My expertise spans modern front-end frameworks, RESTful APIs, cloud platforms, and industry-standard tools like Jira and Git. I’m reliable, team-oriented, and comfortable working on long-term projects with diverse teams to drive continuous improvement.

Juan Santos Reyes

Full Stack Developer, Web Developer, Front-End Developer, +2

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I am a Senior Full Stack Developer with 8 years of experience designing and delivering software solutions across healthcare and fintech. I thrive on turning complex requirements into scalable, maintainable systems and enjoy collaborating with remote teams and clients to align technology with business goals. My expertise spans modern front-end frameworks, RESTful APIs, cloud platforms, and industry-standard tools like Jira and Git. I’m reliable, team-oriented, and comfortable working on long-term projects with diverse teams to drive continuous improvement.…I am a Senior Full Stack Developer with 8 years of experience designing and delivering software solutions across healthcare and fintech. I thrive on turning complex requirements into scalable, maintainable systems and enjoy collaborating with remote teams and clients to align technology with business goals. My expertise spans modern front-end frameworks, RESTful APIs, cloud platforms, and industry-standard tools like Jira and Git. I’m reliable, team-oriented, and comfortable working on long-term projects with diverse teams to drive continuous improvement.

Available to hire

I am a Senior Full Stack Developer with 8 years of experience designing and delivering software solutions across healthcare and fintech. I thrive on turning complex requirements into scalable, maintainable systems and enjoy collaborating with remote teams and clients to align technology with business goals.

My expertise spans modern front-end frameworks, RESTful APIs, cloud platforms, and industry-standard tools like Jira and Git. I’m reliable, team-oriented, and comfortable working on long-term projects with diverse teams to drive continuous improvement.

Skills

Experience Level

Expert

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Expert

Intermediate

Language

English

Fluent

Work Experience

Senior Full Stack Developer at McKinsey & Company

June 1, 2019 - Present

Led full stack development of healthcare applications using React, Node.js, and MongoDB, and designed RESTful APIs and microservices to support fintech features. Collaborated with cross-functional teams to build UI components with Angular and backend services with Express.js. Optimized frontend performance, conducted code reviews, and integrated third-party APIs and payment gateways. Established CI/CD pipelines with Jenkins and Docker, and implemented unit and integration tests with Jest and Cypress. Participated in Agile ceremonies, ensured OAuth2 and JWT security, mentored junior developers, and coordinated with remote teams. Used Jira and Confluence for tracking and documentation and advised on cloud deployment with AWS and Kubernetes. Delivered responsive UI/UX and improved data management across systems.

Full Stack Developer at Boston Consulting Group

October 1, 2017 - June 1, 2019

Contributed to full stack fintech web applications using React and Node.js, developed UI components with Redux, built REST API services, and conducted code reviews. Implemented automated tests with Jest and Mocha, collaborated with product managers to translate requirements into technical solutions, and enhanced security with OAuth2 and JWT. Supported deployments with Docker, Jenkins, and cloud platforms, and collaborated with UI/UX designers on responsive designs.